<template>
  <div class="person">
    <h1>情况三：监视【reactive对象类型数据】数据</h1>
  </div>
</template>

<script lang="ts" setup name="Person">
  import { ref, watch } from 'vue'
  
</script> 

<style scoped>
  .person {
      background-color: skyblue;
      box-shadow: 0 0 10px;
      border-radius: 10px;
      padding: 20px;
  }

  button {
    margin: 0 5px;
  }
</style>